1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Music-Indicator.
Patent for a music indicator, which shows sheet music notations and the name of the note and major and minor chords on a device, which is placed over the keyboard of a piano to show where the different notes are for use in teaching music.
Date:
January 21, 1908
Creator:
Thrash, William E.
System:
The Portal to Texas History